Results 51 to 60 of about 41,424 (223)

Preservation of dendritic D2 receptor transmission in substantia nigra dopamine neurons with age

Scientific Reports, 2023
Substantia nigra pars compacta (SNc) dopamine neurons are required for voluntary movement and reward learning, and advanced age is associated with motor and cognitive decline.
Eva Troyano-Rodriguez, Harris E. Blankenship, Kylie Handa, Sarah Y. Branch, Michael J. Beckstead   +4 more
doaj   +1 more source

Tracking Genetic Parkinson's Disease with Molecular Imaging: A Systematic Review

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Parkinson's disease (PD) is a worldwide, complex neurodegenerative disorder influenced by both genetic and environmental factors. Around 15–20% of PD cases are linked to genetic mutations, providing insights into the disease's pathogenesis.
Chiara Meneghini, Luca Gallo, Arianna Sala, Enza Maria Valente, Micol Avenali, Silvia Paola Caminiti   +5 more
wiley   +1 more source

Spatial Frequency Selectivity Is Impaired in Dopamine D2 Receptor Knockout Mice

Frontiers in Integrative Neuroscience, 2018
Dopamine is a neurotransmitter implicated in several brain functions, including vision. In the present study, we investigated the impacts of the lack of D2 dopamine receptors on the structure and function of the primary visual cortex (V1) of D2-KO mice ...
Bruno Oliveira Ferreira Souza, Mira Abou Rjeili, Clémentine Quintana, Jean M. Beaulieu, Christian Casanova   +4 more
doaj   +1 more source

Acute and Chronic Local Field Potential Recordings in Dystonia—A Systematic Review

Movement Disorders Clinical Practice, EarlyView.
Abstract Dystonia is a hyperkinetic movement disorder increasingly conceptualized as a disorder of distributed network dysfunction involving the basal ganglia, cortex and cerebellum. Local field potentials (LFPs) recorded from deep brain stimulation (DBS) electrodes provide a unique opportunity to characterize the electrophysiological signatures ...
Jack Horan, Eoghan Donlon, Aoibheann Gill, Rosalyn Moran, Conor Fearon, Richard A. Walsh, Catherine Moran   +6 more
wiley   +1 more source

D2-like dopamine receptors mediate the response to amphetamine in a mouse model of ADHD

Neurobiology of Disease, 2007
The mechanisms underlying the effects of psychostimulants in attention deficit hyperactivity disorder (ADHD) are not well understood, but indirect evidence implicates D2 dopamine receptors. Here we dissect the components of dopaminergic neurotransmission
Xueliang Fan, Ellen J. Hess
doaj   +1 more source

Revisiting the Association Between Calcium Channel Blockers and Parkinson's Disease in the E3N Cohort

Movement Disorders, EarlyView.
Abstract Background Previous studies on calcium channel blockers (CCBs) and Parkinson's disease (PD) risk reached conflicting conclusions. Objectives We examined the relationship between CCBs and PD in the E3N cohort of French women followed for 15 years (2004–2018), while taking into account the potential for reverse causation.
Emilie Moutard, Agnès Fournier, Émeline Courtois, Fanny Artaud, Pascale Tubert‐Bitter, Emmanuel Roze, Ismaïl Ahmed, Anne C.M. Thiébaut, Alexis Elbaz, Thi Thu Ha Nguyen   +9 more
wiley   +1 more source

Dopamine presynaptically and heterogeneously modulates nucleus accumbens medium-spiny neuron GABA synapses in vitro

BMC Neuroscience, 2006
Background The striatal complex is the major target of dopamine action in the CNS. There, medium-spiny GABAergic neurons, which constitute about 95% of the neurons in the area, form a mutually inhibitory synaptic network that is modulated by dopamine ...
Joyce Myra P, Schulman Joshua J, Feldman Igor G, Norris J Madison, Geldwert Daron, Rayport Stephen   +5 more
doaj   +1 more source

Distinct Brain Drivers and Shared Cerebello–Cortical Input in ADCY5 and SGCE Hyperkinetic Movements

Movement Disorders, EarlyView.
Resting‐state fMRI and effective connectivity revealed distinct cerebellar–basal ganglia–cortical interactions in ADCY5 (MxMD‐ADCY5) and SGCE (MYC/DYT‐SGCE) related movement disorders. The cerebellum modulated cortex directly in MYC/DYT‐SGCE, but indirectly via basal ganglia‐cerebellar projections in MxMD‐ADCY5, which also showed reduced subthalamic ...
Clément Tarrano, Cécile Galléa, Asya Ekmen, Cécile Delorme, Eavan M. McGovern, Quentin Salardaine, Lina Daghsen, Manon Gomes, Vanessa Brochard, Eoin Mulroy, Kailash P. Bhatia, Carlo Fusco, Miryam Carecchio, Norbert Brüggemann, Alexander Münchau, Victoria Gonzalez, Diane Doummar, Christine Tranchant, Mathieu Anheim, Philippe Damier, Florence Riant, Mohamed Doulazmi, Agathe Roubertie, Caroline Dubacq, Oriane Trouillard, Romain Valabregue, Mélanie Didier, Benoit Beranger, Pierre Pouget, Marie Vidailhet, Sabine Meunier, Aurélie Méneret, Yulia Worbe, Emmanuel Roze   +33 more
wiley   +1 more source

Dopamine D2 receptor upregulation in dorsal striatum in the LRRK2-R1441C rat model of early Parkinson’s disease revealed by in vivo PET imaging

Scientific Reports
We conducted PET imaging with [18F]FDOPA and dopamine D2/3 receptor ligand [18F]fallypride in aged transgenic rats carrying human pathogenic LRRK2 R1441C or G2019S mutations.
Teresa Delgado-Goñi, Natalie Connor-Robson, Milena Cioroch, Stephen Paisey, Christopher Marshall, Emma L. Lane, David Hauton, James McCullagh, Peter J. Magill, Stephanie J. Cragg, Clare E. Mackay, Richard Wade-Martins, Johannes C. Klein   +12 more
doaj   +1 more source

Dichotomous Dopaminergic Control of Ventral Pallidum Neurons

Frontiers in Cellular Neuroscience, 2018
The ventral pallidum (VP) is crucially involved in reward processing. Dopaminergic afferents reach the VP from the ventral tegmental area (VTA). Recent in vivo studies suggest dopamine application increase the firing in the VP.
Martin Clark, Enrico Bracci
doaj   +1 more source